Printing roller cooling device for printing equipment
By uniformly distributing copper plates on the inner wall of the printing roller and combining them with serpentine condenser tubes, the problems of uneven and insufficient cooling of the printing roller are solved, achieving all-round uniform cooling and rapid temperature reduction of the printing roller, thus ensuring printing quality.
Patent Information
- Application Number
- CN202423175076.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing printing roller cooling devices cannot achieve uniform cooling in all directions, resulting in temperature differences in different parts of the printing roller, which affects printing quality, and the cooling capacity is insufficient when operating at high speed.
Copper plates are evenly distributed on the inner wall of the printing roller, combined with serpentine condenser tubes and internal reinforcing columns to increase the contact area and length, achieving all-round uniform cooling. Power is transmitted stably through belt drive, reducing friction and vibration.
It achieves all-round uniform cooling of the printing roller, avoids temperature differences, ensures printing quality, and quickly reduces the temperature of the printing roller to ensure the smooth progress of the printing process.
Smart Images
Figure CN223545964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing equipment technology, and in particular to a cooling device for printing rollers in printing equipment. Background Technology
[0002] In the printing process of offset printing presses, the printing roller, as a key component, is constantly in frequent contact with the printing plate, ink, and paper, and rotates at high speed. This continuous friction and rotation generates a large amount of heat in the printing roller. If the heat cannot be dissipated in time, the temperature of the printing roller will continue to rise. High temperature has many negative effects on printing quality, such as changing the fluidity and drying speed of the ink, which can lead to uneven color and blurry patterns in the printed product. Therefore, to ensure printing quality, a cooling device must be used to control the temperature of the printing roller within a suitable range. However, some current cooling devices have problems. Some cooling devices can only cool the surface or local areas of the printing roller, and cannot achieve uniform cooling of the entire printing roller. As a result, the temperature of different parts of the printing roller will vary, which will have an adverse effect on the printing quality. In addition, some cooling devices have insufficient cooling capacity. When the printing equipment is running at high speed and the printing roller generates a lot of heat, these cooling devices cannot quickly and effectively reduce the temperature of the printing roller. Utility Model Content
[0003] The main objective of this invention is to provide a cooling device for printing rollers in printing equipment, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A printing roller cooling device for printing equipment includes a base plate. A load-bearing mounting frame is fixedly connected to the upper end of the base plate. A thickened plate wall is fixedly connected to the upper left part of the load-bearing mounting frame. A driver is fixedly connected to the right end of the thickened plate wall. The output end of the driver passes through the lower right part of the thickened plate wall and is fixedly connected to an upper pulley. A lower pulley is disposed directly below the upper pulley. A belt is disposed between the upper pulley and the lower pulley. The left end of the lower pulley extends into the load-bearing mounting frame and is fixedly connected to a printing roller. The right end of the printing roller is movably connected to the upper part of the inner right wall of the load-bearing mounting frame via a bearing. The printing roller has a cavity, and ten copper plates are fixedly connected to the inner wall of the printing roller. The ten copper plates are located in the cavity. An inner reinforcing column is provided in the cavity. The left and right ends of the inner reinforcing column are fixedly connected to the middle of the inner left wall and the middle of the inner right wall of the printing roller, respectively. A condenser tube is wound around the outer surface of the inner reinforcing column, and the outer surface of the condenser tube is fixedly connected to the ten copper plates.
[0006] Preferably, the upper left end of the load-bearing mounting frame has a through hole with the same area as the right side of the outer surface of the lower roller, and the left end face of the printing roller does not contact the inner left wall of the load-bearing mounting frame.
[0007] By adopting the above technical solution: through holes ensure the normal installation and rotation of the lower roller, and the printing roller does not contact the frame wall, reducing friction and wear, making the operation more stable.
[0008] Preferably, the upper and lower pulleys are connected by a belt drive.
[0009] By adopting the above technical solution, the upper and lower pulleys are driven by a belt, which stabilizes power transmission, buffers vibration, and reduces damage.
[0010] Preferably, each of the ten copper plates has a groove at the end furthest from the printing roller that fits into the condenser tube.
[0011] By adopting the above technical solution, the grooves of the copper plate are attached to the condenser tube, increasing the contact area, which is conducive to heat transfer, and can efficiently cool the printing roller, thus ensuring printing quality.
[0012] Preferably, the outer surface of the inner reinforcing column has a serpentine groove that matches the condenser tube.
[0013] By adopting the above technical solution, the serpentine groove on the outer surface of the inner reinforcing column matches the condenser tube, which can increase the contact length and area, enhance the cooling effect, and stabilize the printing roller structure.
[0014] Preferably, the condenser tube has a serpentine structure.
[0015] By adopting the above technical solution: the condenser tube has a serpentine structure, which increases its length in a limited space, increases the contact area with the copper plate, enhances heat exchange, and effectively cools the printing roller.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. In this utility model, ten copper plates are evenly distributed on the inner wall of the printing roller, which can collect heat from all directions. The ten copper plates are closely attached to the condenser tube. The serpentine groove of the inner reinforcing column and the serpentine condenser tube increase the contact area, which can effectively conduct internal heat out, achieve all-round uniform cooling, avoid temperature differences in different parts of the printing roller, ensure the stability of ink flow and drying speed, thereby ensuring printing quality and solving the problems of uneven color and blurred pattern caused by local overheating.
[0018] 2. In this utility model, the serpentine condenser tube increases the flow path of the coolant and the contact time with the ten copper plates, greatly improving the heat exchange efficiency. The special structure of the inner reinforcing column and the condenser tube further enhances this heat exchange effect. When the printing equipment is running at high speed and the printing roller generates a lot of heat, it can quickly absorb the heat. At the same time, the stable transmission structure can reduce the extra heat generated by abnormal friction, ensuring that even under the condition of large heat generation, the temperature of the printing roller can be reduced quickly and effectively, ensuring the smooth progress of the printing process. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a printing roller cooling device for printing equipment according to the present invention;
[0020] Figure 2 This is a schematic diagram of the overall structure of the load-bearing mounting frame of a printing roller cooling device for printing equipment according to this utility model.
[0021] Figure 3 This is a cross-sectional schematic diagram of the printing roller of a printing roller cooling device for printing equipment according to the present invention;
[0022] Figure 4 This is a schematic diagram of the overall structure of the copper plate of a printing roller cooling device for printing equipment according to the present invention;
[0023] Figure 5 This is a schematic diagram showing the connection between the inner reinforcing column and the condenser pipe of a printing roller cooling device for printing equipment according to this utility model.
[0024] In the diagram: 1. Base plate; 2. Load-bearing mounting frame; 3. Thickened plate wall; 4. Driver; 5. Upper pulley; 6. Lower pulley; 7. Belt; 8. Printing roller; 9. Cavity; 10. Copper plate; 11. Internal reinforcing column; 12. Condenser pipe. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Please see Figure 1-4 This utility model provides a technical solution:
[0029] A printing roller cooling device for printing equipment includes a base plate 1. A load-bearing mounting frame 2 is fixedly connected to the upper end of the base plate 1. A thickened plate wall 3 is fixedly connected to the upper left part of the load-bearing mounting frame 2. A driver 4 is fixedly connected to the right end of the thickened plate wall 3. The output end of the driver 4 passes through the lower right part of the thickened plate wall 3 and is fixedly connected to an upper pulley 5. A lower pulley 6 is arranged directly below the upper pulley 5. A belt 7 is arranged between the upper pulley 5 and the lower pulley 6. The left end of the lower pulley 6 extends into the load-bearing mounting frame 2 and is fixedly connected to a printing roller 8. The right end of the brush roller 8 is movably connected to the upper part of the inner right wall of the load-bearing mounting frame 2 via a bearing. The printing roller 8 has a cavity 9. Ten copper plates 10 are fixedly connected to the inner wall of the printing roller 8. The ten copper plates 10 are located in the cavity 9. An inner reinforcing column 11 is provided in the cavity 9. The left and right ends of the inner reinforcing column 11 are fixedly connected to the middle of the inner left wall and the middle of the inner right wall of the printing roller 8, respectively. A condenser tube 12 is wound around the outer surface of the inner reinforcing column 11. The outer surface of the condenser tube 12 is fixedly connected to the ten copper plates 10.
[0030] In this embodiment, the upper left end of the load-bearing mounting frame 2 has a through hole with the same area as the right side of the outer surface of the lower roller 6. The left end face of the printing roller 8 does not contact the inner left wall of the load-bearing mounting frame 2. The upper roller 5 and the lower roller 6 are connected by a belt 7. The ends of the ten copper plates 10 away from the printing roller 8 are all provided with grooves that fit with the condenser tube 12. The outer surface of the inner reinforcing column 11 is provided with a serpentine groove that matches the condenser tube 12. The condenser tube 12 has a serpentine structure.
[0031] Through the above scheme: the load-bearing mounting frame 2 provides support, and the upper wheel 5 and lower wheel 6 are driven by the belt 7 to stably drive the printing roller 8, reducing vibration and additional heat generation. In terms of cooling, ten copper plates 10 are evenly distributed on the inner wall of the printing roller 8 to collect heat. Their grooves are in close contact with the condenser tubes 12, and the serpentine grooves of the inner reinforcing column 11 cooperate with the serpentine condenser tubes 12 to increase the contact area and length. This design allows heat to be efficiently transferred from the inside of the printing roller 8 to the condenser tubes 12, achieving all-round uniform cooling and enhancing cooling capacity, solving the problems of temperature difference and insufficient cooling. At the same time, the through holes and the design that the printing roller 8 does not contact the frame wall ensure smooth operation.
[0032] It should be noted that this utility model is a printing roller cooling device for printing equipment. During use, firstly, the stable driving of the printing roller 8 is achieved through the cooperation of the driver 4, upper pulley 5, lower pulley 6, and belt 7. The driver 4, as the power source, can precisely control the rotation speed, ensuring the stable rotation of the printing roller 8 during the printing process. The belt 7 transmission has a certain degree of elasticity, which can buffer impacts and vibrations, reducing damage to the printing roller 8 and other components. It can also accommodate a certain degree of installation error, ensuring the reliability of power transmission, allowing the printing roller 8 to continuously and stably contact the printing plate, ink, and paper, ensuring the normal operation of the printing process. The printing roller 8 has a cavity 9 inside, with ten copper plates 10 fixed to the inner wall. This design facilitates heat conduction because the copper plates... The plate 10 has good thermal conductivity, which can quickly transfer the heat generated by the printing roller 8 during operation to the condenser tube 12. The ten copper plates 10 are evenly distributed in the cavity 9, which can ensure that heat is collected from all parts of the printing roller 8, achieve relatively uniform heat transfer, avoid local overheating, and help maintain the temperature stability of the printing roller 8, thereby ensuring printing quality. The inner reinforcing column 11 not only strengthens the internal structure of the printing roller 8, but the condenser tube 12 wrapped around its outer surface increases the contact area with the copper plates 10. When the coolant flows in the condenser tube 12, it can more efficiently absorb the heat conducted from the copper plates 10, quickly reduce the temperature of the printing roller 8, and effectively maintain a suitable temperature even when the printing equipment is running at high speed and the printing roller 8 generates a lot of heat.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A printing roller cooling device for printing equipment, comprising a base plate (1), characterized in that: A load-bearing mounting frame (2) is fixedly connected to the upper end of the base plate (1). A thickened plate wall (3) is fixedly connected to the upper left part of the load-bearing mounting frame (2). A driver (4) is fixedly connected to the right end of the thickened plate wall (3). The output end of the driver (4) passes through the lower right end of the thickened plate wall (3) and is fixedly connected to an upper wheel (5). A lower wheel (6) is provided directly below the upper wheel (5). A belt (7) is provided between the upper wheel (5) and the lower wheel (6). The left end of the lower wheel (6) extends into the load-bearing mounting frame (2) and is fixedly connected to a printing roller (8). The right end of the printing roller (8) is... The end is movably connected to the upper part of the inner right wall of the load-bearing mounting frame (2) via a bearing. The printing roller (8) has a cavity (9) inside. Ten copper plates (10) are fixedly connected to the inner wall of the printing roller (8). The ten copper plates (10) are located in the cavity (9). An inner reinforcing column (11) is provided in the cavity (9). The left and right ends of the inner reinforcing column (11) are fixedly connected to the middle of the inner left wall and the middle of the inner right wall of the printing roller (8), respectively. A condenser tube (12) is wound around the outer surface of the inner reinforcing column (11). The outer surface of the condenser tube (12) is fixedly connected to the ten copper plates (10).
2. The printing roller cooling device for printing equipment according to claim 1, characterized in that: The upper left end of the load-bearing mounting frame (2) has a through hole with the same area as the right side of the outer surface of the lower roller (6), and the left end face of the printing roller (8) does not contact the inner left wall of the load-bearing mounting frame (2).
3. The printing roller cooling device for printing equipment according to claim 1, characterized in that: The upper pulley (5) and the lower pulley (6) are connected by a belt (7).
4. A printing roller cooling device for printing equipment according to claim 1, characterized in that: Each of the ten copper plates (10) has a groove at the end away from the printing roller (8) that fits into the condenser tube (12).
5. A printing roller cooling device for printing equipment according to claim 1, characterized in that: The outer surface of the inner reinforcing column (11) has a serpentine groove that matches the condenser tube (12).
6. A printing roller cooling device for printing equipment according to claim 1, characterized in that: The condenser tube (12) has a serpentine structure.